http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?docsPerPage%3D100;f67-facility%3DCompton%20Gamma%20Ray%20Observatory Results for your query: docsPerPage=100;f67-facility=Compton Gamma Ray Observatory Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/BATSE_2704/BATSE_2704.dc.xml Each dot on the elliptal surface of this map represents the location of one of 2704 gamma-ray bursts detected by BATSE during its 9-year mission. The map’s perspective places the plane of the Milky Way centered horizontally across the map. The bursts are color-coordinated according to intensity with long, intense bursts colored red, and short, weaker bursts colored purple. Note that the majority of the bursts are colored green, which denote medium energy and/or duration. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/BATSE_2704/BATSE_2704.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/grayEarth_petry/grayEarth_petry.dc.xml The pixelated planet above is actually our own planet Earth seen in gamma rays--the most energetic form of light. In fact, the gamma rays used to construct this view pack over 35 million electron volts (MeV) compared to a mere two electron volts (eV) for a typical visible light photon. The Earth's gamma-ray glow is indeed very faint, and this image was constructed by combining data from seven years of exposure during the life of the Compton Gamma Ray Observatory, operating in Earth orbit from 1991 to 2000. Brightest near the edge and faint near the center, the picture indicates that the gamma rays are coming from high in Earth's atmosphere. The gamma rays are produced as the atmosphere interacts with high energy cosmic rays from space, blocking the harmful radiation from reaching the surface. Astronomers need to understand Earth's gamma-ray glow well as it can interfere with observations of cosmic gamma-ray sources like pulsars, supernova remnants, and distant active galaxies powered by supermassive black hol... http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/grayEarth_petry/grayEarth_petry.dc.xml Thu, 01 Jan 1970 12:00:00 GMT